brettkettering
commented
10 years ago The only thing that I can think of is that it's not matching the function prototype because of your declaration of "char *key". I think it would want a string constant that is the xattr you want to set. So, you need:
char key[] = "MyKeyName";
Then, pass key as you do now.
Brett
From: hadimontakhabi notifications@github.com<mailto:notifications@github.com> Reply-To: plfs/plfs-core reply@reply.github.com<mailto:reply@reply.github.com> Date: Thursday, December 5, 2013 11:49 AM To: plfs/plfs-core plfs-core@noreply.github.com<mailto:plfs-core@noreply.github.com> Subject: [plfs-core] Link problem using plfs_setxattr (#329)
Compiling the following code with: gcc -L/opt/plfs/lib/ -lplfs plfs_simple_example.c -o plfs_simple_example -g -Wall -I/opt/plfs/include/ returns: /tmp/cc478ye6.o: In function main': /mnt/plfs/plfs_example/plfs_simple_example.c:47: undefined reference toplfs_setxattr' collect2: error: ld returned 1 exit status make: *\ [all] Error 1
Replacing plfs_setxattr function with plfs_getxattr doesn't produce the same problem! Anybody could help?
int main() { Plfs_fd pfd = NULL; char wpath[1024]; char buf; buf = "a"; int offset = 0; ssize_t bytes; char *filename; int flags; plfs_error_t plfs_ret;
filename = "filename.txt"; getcwd(wpath, sizeof(wpath)); sprintf(wpath,"%s/%s",wpath,filename); fprintf(stdout, "wpath: %s\n", wpath);
plfs_open( &pfd, wpath, O_CREAT | O_WRONLY | O_RDONLY, 0, 0666, NULL ); plfs_write( pfd, buf, sizeof(char), offset, 0, &bytes );
char *key; int value = 16; key = "num_hostdirs";
plfs_ret = plfs_setxattr(pfd, &value, key);
if (plfs_ret != PLFS_SUCCESS) { printf("ERROR in plf_setxattr:\n%s\n", strplfserr(plfs_ret)); }
plfs_ret = plfs_close(pfd, 0, 0, O_CREAT | O_WRONLY | O_RDONLY ,NULL, &flags); return 0; }
— Reply to this email directly or view it on GitHubhttps://github.com/plfs/plfs-core/issues/329.
hadimontakhabi
chuckcranor
Compiling the following code with: gcc -L/opt/plfs/lib/ -lplfs plfs_simple_example.c -o plfs_simple_example -g -Wall -I/opt/plfs/include/ returns: /tmp/cc478ye6.o: In function
main': /mnt/plfs/plfs_example/plfs_simple_example.c:47: undefined reference toplfs_setxattr' collect2: error: ld returned 1 exit status make: *\ [all] Error 1Replacing plfs_setxattr function with plfs_getxattr doesn't produce the same problem! Anybody could help?
int main() { Plfs_fd pfd = NULL; char wpath[1024]; char buf; buf = "a"; int offset = 0; ssize_t bytes; char *filename; int flags; plfs_error_t plfs_ret;
filename = "filename.txt"; getcwd(wpath, sizeof(wpath)); sprintf(wpath,"%s/%s",wpath,filename); fprintf(stdout, "wpath: %s\n", wpath);
plfs_open( &pfd, wpath, O_CREAT | O_WRONLY | O_RDONLY, 0, 0666, NULL ); plfs_write( pfd, buf, sizeof(char), offset, 0, &bytes );
char *key; int value = 16; key = "num_hostdirs";
plfs_ret = plfs_setxattr(pfd, &value, key);
if (plfs_ret != PLFS_SUCCESS) { printf("ERROR in plf_setxattr:\n%s\n", strplfserr(plfs_ret)); }
plfs_ret = plfs_close(pfd, 0, 0, O_CREAT | O_WRONLY | O_RDONLY ,NULL, &flags); return 0; }